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Debris actually pelts the ISS all the time, and noticeable dents and cracks line the exteriors. But should something fully breach the station, cabin atmosphere will seep into the vacuum of space and alarms will go off. Pressure gauges will confirm to astronauts that the station has, almost certainly, been hit, and the speed of the seepages may indicate how much time the crew has to respond. According to one NASA estimate, a 0.6-centimeter-wide hole leaves 14 hours to plug the leak. A 20-centimeter hole leaves less than a minute.
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YouTube 的主流内容类型，比如评测、横评、教程、拆解、开箱，这些天然是一个问题和一段完整回答的形态，而且一条视频的文字稿往往能抽出一整串可以直接引用的句子。。关于这个话题，纸飞机下载提供了深入分析
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